Double multicolor web perfecting rotary printing press



y 1931. H. M. BARBER 1,816,354

DOUBLE MULTICOLOR WEB PERFECTING ROTARY PRINTING PRESS Filed April 16,1930 2 Sheets-Sheet l INVENTOR BY 7a.. M W

ATTORNEYS DOUBLE MULTICOLOR WEB PERFECTING ROTARY PRINTING PRESS FiledApril 16, 1930 2 Sheets-Sheet 2 INVENTOR ATT'oRNEYs Patented Jul 28,1931 LUNITEDISTATES PATENT oFl-"jlcs HOWARD T11. BARBER, F PAWCATUGK,CONNECTICUT, ASSIGNOR '10 0. B. GOTTRELL 86 p SONS COMPANY, OF WESTERLY,RHODE I SLAND, A CORPORATION DELAWARE DOUBLE MULTICOLOR WEB PERFEC'IINGROTARY PRINTING PRESS Application filed April 16,

This inventioncomprises a double multicolor web perfecting rotaryprinting press in which the first and second printing units are arrangedat right angles to eachother, with the provision of an interposed webturning device. 4

This invention further comprises a printing press of the above characterin which the printing units are located in the same horizontal plane sothat the corresponding inking mechanisms of both printing units Wlll besubjected to the same temperature. for ensuring the proper distributionand laying of the inks.

This invention furthercomprises a press of the above character in whichthe plate cylinders of i posed around their impression cyllnder at oneside of its horizontal central plane.

This invention further comprises a press of the above character in whichthe plate cylinders of each printing unit are disposed around the uppercylinder so that the web may be located under the inking mechanisms forsald plate cylinders, thereby causing all web paper dust to drop awayfrom rather than into the inking mechanisms. This arrangement of theplate cylinders also permits a downward pressure at all times on theimpression cylinder shaft bearings.

A practical embodiment of my invention is represented in theaccompanying draw ings, in which Fig. 1 represents diagrammatically atop plan view of the press with the inking mechanisms removed;

Fig. 2 represents diagrammatically a View of the press with the firstprinting uni-t shown in side elevation and the second printing unit inend elevation; and

Fig. 3 represents diagrammatically a detail view showlng the secondprinting unit in side elevation. I

In the first printing unit of the press the impression cylinder isdenoted by 1 and its 2, 3, 4, 5, which plate plate cylinders bycylinders are shown as arrangedaround the impression cylinder.

upper side of the These plate cylinders are provided with inkdifferentprinting units are disside oftheir impression 1930. Serial No; 444,747.

ing mechanisms 6, 7, 8, 9 of any well knqwn or approved form. I

In the second printing unit of the press the impression cylinder isdenoted by 10 and its plate cylinders by 11, 12, 13, 14, which platecylinders are arranged around the upper side of. the impressioncylinder.

These plate cylinders are provided with inking-mechanlsms 1 5, 16, 1718, of any well known or approved form.

Thetwo printing units are arrangedfi'n' substantially the samehorizontal plane'so "that the eorrespondmg inking mechanisms of the twoprinting units will be subjected to the same temperature forfaci'litating th e distribution and laying of the inks.

The two "printing units are arrangedat substantially right angles toeach other and a web turning device 19 is placedbetween the two printingunits, to change the direc-, tion of travel of the web after firstprinting unit. r I

The web 20 to be printed'in multicolor on both sides is shown as passing;from its over a roll 22 'and undera supply roll21 p around the upperside of the roll 23 to and impression cylinder 1 of the first printmgFrom thence the web printed in multicolor unit under the plate cylinders2, 3, 4, 5.

on one side is fed under the roll 24 to and around the web turningdevice 19 and from thence under a roll 25 to and around the upper sideof the impression-cylinder 10 of I the second printing unit undertheplate cylinders 11,12, 13, 14. From thence the web printed: in.multicolor on both sides is led under a roll 26 and througha cuttingmechanism, such, for instance, as a pairof coact-' ing rotary cutters27, 28.

An offset web 2% is shown aslbeing fed. from its supply roll 30 to "andaround the impression cylinderlO of the second printing unit and fromthence to its take-up roll 31. I

The two printing units of the-press may be driven from a common sourceof power, such, for instance, as an electric motor 32 which is hereinshown as having a pulley I and a belt drive connection 33. 34, 35, witha cross sh'aftl36 connected through a train it has left the the samehorizontalplane and by locating the plate cylinders of the two printingunits around the upper sides of their respective impression cylinders "anumber of advantageous results are obtained. As hereinabove set forth,this arrangement permits the use of two similar printing units withcorresponding members in the same horizontal plane. It also permits theweb to be located under the inkingmechanisms of the two printing unitsso that all paper dust will drop away from rather than into the inkingmechanisms. It will also permit the corresponding inking mechanisms ofthe two printing units to be subjected to the same temperature, tofacilitate the distributing and laying of the inks. This arrangementalso ensures a downward pressure at all times on the impression cylindershaft bearings.

It is evident that various changes may be resorted to in theconstruction, form and arrangement of the several parts withoutdeparting from the spirit and scope of my invention, and hence I do notintend to be limited to the particular embodiment herein shown anddescribed, but

What I claim is 1. In a double multicolor web perfecting rotaryprintingpress, first and second multicolor printing units located atsubstantially right angles to each other, and a web turning devicelocated between the printing units, each printing unit comprising animpression cylinder and a plurality of plate cylinders arranged aroundthe impression cylinder at one side of its horizontal central 7 plane.

2. In a double multicolor web perfecting rotary printing press, firstand second multicolor printing units located in practically the samehorizontal plane and at substantially right angles to each other, and aweb turning device located between the printing units, each printingunit comprising an impression cylinder and a plurality of platecylinders arranged around the impression cylinder at one side of itshorizontal central plane.

3. In a double multicolor web perfecting rotary printing press, firstand second multicolor printing units located at substantially rightangles to each other, and a web turning device located between theprinting units, each printing unit comprising an impression cylinder anda plurality of plate as my invention, I have signed my name this 11thday of April,.l930.

' HOIVARD M. BARBER.

